:root{--bg-raw:230,25%,5%;--bg:hsl(var(--bg-raw));--bg-surface:hsl(230,20%,9%);--bg-card:hsl(230,18%,13%);--bg-input:hsl(230,16%,17%);--border:rgba(255,255,255,0.05);--border-hover:rgba(255,255,255,0.12);--border-focus:hsla(245,100%,70%,0.4);--text:#f1f3f9;--text-secondary:#9aa2b8;--text-muted:#5c6479;--primary-h:245;--primary-s:100%;--primary-l:68%;--primary:hsl(var(--primary-h),var(--primary-s),var(--primary-l));--primary-hover:hsl(var(--primary-h),var(--primary-s),72%);--primary-glow:hsla(var(--primary-h),var(--primary-s),var(--primary-l),0.15);--green:#10b981;--green-glow:rgba(16,185,129,0.15);--amber:#f59e0b;--amber-glow:rgba(245,158,11,0.15);--red:#ef4444;--red-glow:rgba(239,68,68,0.15);--blue:#3b82f6;--radius-lg:24px;--radius-md:16px;--radius-sm:10px;--radius-pill:100px;--shadow:0 16px 40px rgba(0,0,0,0.6);--shadow-sm:0 4px 16px rgba(0,0,0,0.4);--shadow-glow:0 0 24px var(--primary-glow);--transition:0.3s cubic-bezier(0.16,1,0.3,1);--transition-fast:0.15s cubic-bezier(0.16,1,0.3,1);--grid-line:rgba(255,255,255,0.015);--grid-line-bold:rgba(108,99,255,0.025);--nav-h:70px;}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{scroll-behavior:smooth;font-size:16px;background:var(--bg);}body{font-family:'Plus Jakarta Sans',sans-serif;color:var(--text);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased;background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px),linear-gradient(var(--grid-line-bold) 2px,transparent 2px),linear-gradient(90deg,var(--grid-line-bold) 2px,transparent 2px);background-size:20px 20px,20px 20px,100px 100px,100px 100px;background-position:center center;position:relative;}a{color:inherit;text-decoration:none;}button{font-family:inherit;cursor:pointer;border:none;background:none;outline:none;}input,select,textarea{font-family:inherit;}.page-wrap{position:relative;z-index:1;display:flex;flex-direction:column;min-height:100vh;}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 2.5rem;}.container-sm{width:100%;max-width:800px;margin:0 auto;padding:0 2.5rem;}.two-col{display:grid;grid-template-columns:1fr 340px;gap:2.5rem;align-items:start;margin-top:1rem;}#mathCanvas{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:0.15;}.nav{position:sticky;top:0;z-index:100;height:var(--nav-h);background:rgba(var(--bg-raw),0.75);backdrop-filter:blur(24px) saturate(1.8);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 2.5rem;justify-content:space-between;}.nav-logo{font-family:'Syne',sans-serif;font-weight:800;font-size:1.5rem;letter-spacing:-0.04em;display:flex;align-items:center;gap:4px;}.nav-logo span{color:var(--primary);}.nav-logo .dot{width:8px;height:8px;border-radius:50%;background:var(--green);display:inline-block;box-shadow:0 0 12px var(--green);}.nav-search{flex:1;max-width:380px;display:flex;align-items:center;gap:10px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:9px 16px;transition:all var(--transition);}.nav-search:focus-within{border-color:var(--primary);box-shadow:var(--shadow-glow);background:var(--bg-card);}.nav-search svg{color:var(--text-muted);flex-shrink:0;}.nav-search input{background:none;border:none;outline:none;color:var(--text);font-size:14px;width:100%;font-weight:500;}.nav-search input::placeholder{color:var(--text-muted);}.nav-links{display:flex;align-items:center;gap:0.5rem;}.nav-link{padding:8px 18px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;color:var(--text-secondary);transition:all var(--transition);}.nav-link:hover{background:var(--bg-surface);color:var(--text);}.nav-link.active{color:var(--primary);background:var(--primary-glow);}.nav-cta{background:var(--primary);color:#fff;padding:10px 22px;border-radius:var(--radius-md);font-family:'Syne',sans-serif;font-weight:700;font-size:13.5px;letter-spacing:0.01em;transition:all var(--transition);box-shadow:0 4px 20px rgba(108,99,255,0.25);}.nav-cta:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 6px 24px rgba(108,99,255,0.4);}.breadcrumb{padding:1.5rem 2.5rem 0.5rem;font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:8px;font-weight:500;}.breadcrumb a{color:var(--text-muted);transition:color var(--transition);}.breadcrumb a:hover{color:var(--primary);}.breadcrumb span{color:var(--text-secondary);}.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:var(--radius-pill);font-size:11.5px;font-weight:600;letter-spacing:0.04em;text-transform:uppercase;}.badge-finance{background:rgba(245,158,11,0.06);border:1px solid rgba(245,158,11,0.2);color:var(--amber);}.badge-health{background:rgba(16,185,129,0.06);border:1px solid rgba(16,185,129,0.2);color:var(--green);}.badge-utility{background:rgba(108,99,255,0.06);border:1px solid rgba(108,99,255,0.2);color:var(--primary);}.badge-tech{background:rgba(239,68,68,0.06);border:1px solid rgba(239,68,68,0.2);color:var(--red);}.badge-fun{background:rgba(251,113,133,0.06);border:1px solid rgba(251,113,133,0.2);color:#fb7185;}.home-hero{text-align:center;padding:6rem 1.5rem 4rem;max-width:800px;margin:0 auto;}.home-hero h1{font-family:'Syne',sans-serif;font-weight:800;font-size:clamp(2.5rem,7vw,4.5rem);line-height:1.05;letter-spacing:-0.05em;margin-bottom:1.5rem;}.home-hero h1 em{color:var(--primary);font-style:normal;position:relative;display:inline-block;}.home-hero p{font-size:1.15rem;color:var(--text-secondary);max-width:580px;margin:0 auto 3rem;line-height:1.7;}.home-stats{display:flex;justify-content:center;gap:4rem;flex-wrap:wrap;}.home-stat{text-align:center;}.home-stat .n{font-family:'Syne',sans-serif;font-weight:800;font-size:2.2rem;line-height:1;}.home-stat .l{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.1em;margin-top:6px;font-weight:600;}.cat-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:2.5rem;justify-content:flex-start;}.cat-tab{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-pill);padding:9px 22px;font-size:13.5px;font-weight:600;color:var(--text-secondary);transition:all var(--transition);}.cat-tab:hover{border-color:var(--border-hover);color:var(--text);transform:translateY(-1px);}.cat-tab.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:var(--shadow-glow);}.calc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem;}.calc-card{background:rgba(18,20,28,0.4);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;transition:all var(--transition);display:flex;flex-direction:column;gap:1.5rem;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;}.calc-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(800px circle at var(--x,0px) var(--y,0px),rgba(255,255,255,0.03),transparent 40%);z-index:0;pointer-events:none;}.calc-card:hover{border-color:var(--border-hover);transform:translateY(-5px);box-shadow:var(--shadow);background:rgba(18,20,28,0.7);}.calc-card-icon{width:52px;height:52px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:26px;z-index:1;}.calc-card-top{display:flex;align-items:center;justify-content:space-between;z-index:1;}.calc-card-content{display:flex;flex-direction:column;gap:8px;z-index:1;}.calc-card-title{font-family:'Syne',sans-serif;font-weight:700;font-size:1.15rem;color:var(--text);line-height:1.3;}.calc-card-desc{font-size:14px;color:var(--text-secondary);line-height:1.6;}.calc-card-arrow{font-family:'Syne',sans-serif;font-size:13px;color:var(--primary);font-weight:700;margin-top:auto;display:flex;align-items:center;gap:6px;transition:gap var(--transition-fast);z-index:1;}.calc-card:hover .calc-card-arrow{gap:10px;color:var(--primary-hover);}.calc-panel{background:rgba(18,20,28,0.5);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2.5rem;box-shadow:var(--shadow);}.field{margin-bottom:1.5rem;}.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text-secondary);margin-bottom:8px;letter-spacing:0.02em;}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;}.input,.select{width:100%;background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:12px 18px;color:var(--text);font-size:15px;outline:none;font-weight:500;transition:all var(--transition);}.input:focus,.select:focus{border-color:var(--primary);box-shadow:var(--shadow-glow);background:var(--bg-card);}.input::placeholder{color:var(--text-muted);}.select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239aa2b8' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:42px;cursor:pointer;appearance:none;}.select option{background:var(--bg-surface);}.input-prefix-wrap{position:relative;}.input-prefix{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:15px;pointer-events:none;font-weight:600;}.input-prefix ~ .input{padding-left:34px;}.btn{width:100%;padding:14px 24px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-md);font-family:'Syne',sans-serif;font-weight:700;font-size:1rem;letter-spacing:0.02em;transition:all var(--transition);box-shadow:0 4px 20px rgba(108,99,255,0.25);display:flex;align-items:center;justify-content:center;gap:8px;}.btn:hover{background:var(--primary-hover);transform:translateY(-1.5px);box-shadow:0 8px 30px rgba(108,99,255,0.4);}.btn:active{transform:translateY(0);}.btn-sm{font-size:13.5px;padding:10px 20px;width:auto;}.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text-secondary);box-shadow:none;}.btn-outline:hover{background:var(--bg-surface);border-color:var(--border-hover);color:var(--text);box-shadow:none;}.btn-green{background:var(--green);color:#05060b;box-shadow:0 4px 20px rgba(16,185,129,0.25);}.btn-green:hover{background:#14d495;box-shadow:0 8px 30px rgba(16,185,129,0.4);}.result-box{background:rgba(26,29,40,0.6);border:1.5px solid var(--border-hover);border-radius:var(--radius-lg);padding:2rem;margin-top:1.5rem;display:none;animation:fadeUp var(--transition);box-shadow:var(--shadow);}.result-box.show{display:block;}@keyframes fadeUp{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:1rem;}.result-item{text-align:center;padding:18px 12px;background:var(--bg-surface);border-radius:var(--radius-md);border:1px solid var(--border);transition:all var(--transition);}.result-item:hover{border-color:var(--border-hover);background:var(--bg-card);}.result-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:8px;font-weight:700;}.result-value{font-family:'Syne',sans-serif;font-weight:700;font-size:1.5rem;letter-spacing:-0.02em;}.result-value.green{color:var(--green);}.result-value.amber{color:var(--amber);}.result-value.red{color:var(--red);}.result-value.blue{color:var(--blue);}.result-value.purple{color:var(--primary);}.post-result{background:linear-gradient(135deg,rgba(108,99,255,0.05),rgba(16,185,129,0.03));border:1px dashed rgba(108,99,255,0.25);border-radius:var(--radius-lg);padding:2rem;margin-top:1.5rem;display:none;animation:fadeUp var(--transition);}.post-result.show{display:block;}.post-result h3{font-family:'Syne',sans-serif;font-weight:700;font-size:1.05rem;margin-bottom:1.25rem;color:var(--primary);display:flex;align-items:center;gap:8px;}.related-calcs{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:1.5rem;}.related-btn{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px;color:var(--text-secondary);font-size:13.5px;font-weight:600;transition:all var(--transition);display:flex;align-items:center;gap:8px;}.related-btn:hover{border-color:var(--primary);background:rgba(108,99,255,0.04);color:var(--text);transform:translateY(-1px);}.related-btn .icon{font-size:1.2rem;}.affiliate-box{background:linear-gradient(135deg,rgba(16,185,129,0.08),rgba(59,130,246,0.06));border:1px solid rgba(16,185,129,0.2);border-radius:var(--radius-md);padding:1.25rem;display:flex;align-items:center;gap:1.25rem;flex-wrap:wrap;}.affiliate-box-text{flex:1;min-width:200px;}.affiliate-box-text strong{font-size:14px;color:var(--text);display:block;margin-bottom:4px;}.affiliate-box-text p{font-size:13px;color:var(--text-secondary);line-height:1.5;}.affiliate-box a{background:var(--green);color:#05060b;padding:10px 20px;border-radius:var(--radius-sm);font-size:13px;font-weight:700;transition:all var(--transition);box-shadow:0 4px 15px rgba(16,185,129,0.2);}.affiliate-box a:hover{opacity:0.9;transform:translateY(-1px);box-shadow:0 6px 20px rgba(16,185,129,0.35);}.sidebar{position:sticky;top:calc(var(--nav-h) + 1.5rem);display:flex;flex-direction:column;gap:1.5rem;}.sidebar-widget{background:rgba(18,20,28,0.4);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-sm);}.sidebar-widget h3{font-family:'Syne',sans-serif;font-weight:700;font-size:0.95rem;margin-bottom:1.25rem;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-muted);}.related-list{display:flex;flex-direction:column;gap:6px;}.related-list a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);font-size:14px;color:var(--text-secondary);font-weight:500;transition:all var(--transition);}.related-list a:hover{background:var(--bg-surface);color:var(--text);}.related-list a .ri{font-size:1.1rem;}.ad-slot{background:rgba(18,20,28,0.25);border:1px dashed var(--border);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:11px;letter-spacing:0.1em;text-transform:uppercase;font-weight:600;}.ad-728{height:90px;width:100%;margin:2rem 0;}.ad-300{height:250px;width:100%;}.ad-468{height:60px;width:100%;margin-top:2rem;}.email-capture-box{background:linear-gradient(135deg,rgba(108,99,255,0.1),rgba(16,185,129,0.05));border:1.5px solid rgba(108,99,255,0.2);border-radius:var(--radius-lg);padding:2.5rem;display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;margin-bottom:3.5rem;}.email-capture-box h3{font-family:'Syne',sans-serif;font-weight:700;font-size:1.25rem;margin-bottom:6px;}.email-capture-box p{font-size:14px;color:var(--text-secondary);}.email-capture-form{display:flex;gap:10px;flex-wrap:wrap;}.email-capture-form input{background:var(--bg-surface);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:12px 18px;color:var(--text);font-size:14px;width:250px;outline:none;font-weight:500;transition:all var(--transition);}.email-capture-form input:focus{border-color:var(--primary);background:var(--bg-card);}.email-gate-overlay{position:fixed;inset:0;z-index:500;background:rgba(5,6,11,0.85);backdrop-filter:blur(12px);display:none;align-items:center;justify-content:center;padding:20px;}.email-gate-overlay.show{display:flex;}.email-gate-box{background:var(--bg-surface);border:1.5px solid var(--border-hover);border-radius:var(--radius-lg);padding:3rem;width:100%;max-width:440px;text-align:center;animation:fadeUp 0.35s cubic-bezier(0.16,1,0.3,1);box-shadow:var(--shadow);}.email-gate-icon{font-size:3.2rem;margin-bottom:1.25rem;}.email-gate-box h2{font-family:'Syne',sans-serif;font-weight:700;font-size:1.5rem;margin-bottom:12px;letter-spacing:-0.02em;}.email-gate-box p{font-size:14.5px;color:var(--text-secondary);margin-bottom:2rem;line-height:1.6;}.email-gate-form{display:flex;flex-direction:column;gap:12px;}.email-gate-legal{font-size:11.5px;color:var(--text-muted);margin-top:14px;line-height:1.6;}.email-gate-legal a{color:var(--primary);text-decoration:underline;text-underline-offset:2px;}.email-gate-skip{font-size:12.5px;color:var(--text-muted);cursor:pointer;margin-top:10px;display:inline-block;font-weight:600;transition:color var(--transition);}.email-gate-skip:hover{color:var(--primary);}#consentBanner{position:fixed;bottom:0;left:0;right:0;z-index:9999;background:rgba(14,15,22,0.97);backdrop-filter:blur(20px);border-top:1px solid rgba(108,99,255,0.25);padding:1.5rem 2.5rem;box-shadow:0 -8px 40px rgba(0,0,0,0.6);transform:translateY(100%);transition:transform 0.4s cubic-bezier(0.16,1,0.3,1);}#consentBanner.consent-visible{transform:translateY(0);}.consent-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:2rem;flex-wrap:wrap;}.consent-text{flex:1;min-width:280px;}.consent-text strong{display:block;font-family:'Syne',sans-serif;font-size:1rem;font-weight:700;margin-bottom:6px;color:var(--text);}.consent-text p{font-size:13px;color:var(--text-secondary);line-height:1.65;margin:0;}.consent-text a{color:var(--primary);text-decoration:underline;text-underline-offset:2px;}.consent-actions{display:flex;gap:10px;flex-shrink:0;flex-wrap:wrap;}.consent-btn-decline{background:transparent;border:1.5px solid var(--border-hover);color:var(--text-secondary);font-size:13px;padding:10px 20px;border-radius:var(--radius-md);font-family:'Syne',sans-serif;font-weight:700;transition:all var(--transition);width:auto;box-shadow:none;}.consent-btn-decline:hover{border-color:var(--primary);color:var(--text);background:rgba(108,99,255,0.05);transform:none;box-shadow:none;}.consent-btn-accept{font-size:13px;padding:10px 22px;width:auto;}@media (max-width:600px){#consentBanner{padding:1.25rem 1.5rem;}.consent-actions{width:100%;justify-content:stretch;}.consent-btn-decline,.consent-btn-accept{flex:1;text-align:center;justify-content:center;}}.toast{position:fixed;bottom:-80px;left:50%;transform:translateX(-50%);background:var(--green);color:#05060b;padding:14px 28px;border-radius:var(--radius-md);font-size:14px;font-weight:700;z-index:600;transition:bottom 0.4s cubic-bezier(0.175,0.885,0.32,1.275);box-shadow:var(--shadow);white-space:nowrap;}.toast.show{bottom:30px;}.seo-section{background:rgba(18,20,28,0.4);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2.5rem;margin-top:2.5rem;}.seo-section h2{font-family:'Syne',sans-serif;font-weight:700;font-size:1.35rem;margin-bottom:1.25rem;letter-spacing:-0.02em;}.seo-section h3{font-family:'Syne',sans-serif;font-weight:700;font-size:1.05rem;margin:1.5rem 0 0.75rem;color:var(--primary);}.seo-section p{font-size:14.5px;color:var(--text-secondary);line-height:1.75;margin-bottom:1rem;}.seo-section ul{padding-left:1.5rem;margin-bottom:1rem;}.seo-section ul li{font-size:14.5px;color:var(--text-secondary);margin-bottom:0.5rem;line-height:1.7;}.faq-section{margin-top:2.5rem;}.faq-item{border-bottom:1px solid var(--border);padding:1.25rem 0;cursor:pointer;}.faq-item:last-child{border-bottom:none;}.faq-q{display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:15px;color:var(--text);gap:12px;}.faq-q .faq-icon{font-size:1.3rem;color:var(--text-muted);flex-shrink:0;transition:transform var(--transition);}.faq-a{font-size:14.5px;color:var(--text-secondary);line-height:1.7;padding-top:12px;display:none;animation:fadeUp var(--transition-fast);}.faq-item.open .faq-a{display:block;}.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--primary);}.footer{border-top:1px solid var(--border);margin-top:auto;padding:5rem 2.5rem 3rem;background:rgba(8,9,12,0.6);backdrop-filter:blur(16px);}.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:4rem;margin-bottom:3.5rem;}.footer-brand p{font-size:14px;color:var(--text-muted);margin-top:12px;line-height:1.75;max-width:260px;}.footer-col h4{font-family:'Syne',sans-serif;font-size:11px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--text-muted);margin-bottom:1.25rem;}.footer-col a{display:block;font-size:14px;color:var(--text-secondary);margin-bottom:10px;transition:color var(--transition);font-weight:500;}.footer-col a:hover{color:var(--primary);}.footer-bottom{max-width:1200px;margin:0 auto;padding-top:2rem;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.25rem;}.footer-bottom p{font-size:12.5px;color:var(--text-muted);font-weight:500;}.page-hero{padding:3rem 0 2.5rem;border-bottom:1px solid var(--border);margin-bottom:2.5rem;}.page-hero-inner{display:flex;align-items:flex-start;gap:1.5rem;flex-wrap:wrap;}.page-hero-icon{width:68px;height:68px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:32px;flex-shrink:0;box-shadow:var(--shadow-sm);}.page-hero-title{font-family:'Syne',sans-serif;font-weight:800;font-size:clamp(1.8rem,5vw,2.5rem);letter-spacing:-0.04em;margin-bottom:8px;line-height:1.1;}.page-hero-desc{font-size:15px;color:var(--text-secondary);max-width:620px;line-height:1.65;}.page-hero-meta{display:flex;align-items:center;gap:16px;margin-top:14px;flex-wrap:wrap;}.page-hero-meta span{font-size:12.5px;color:var(--text-muted);display:flex;align-items:center;gap:5px;font-weight:500;}.hidden{display:none !important;}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);}.text-center{text-align:center;}.mt-1{margin-top:1rem;}.mt-2{margin-top:2rem;}.mb-1{margin-bottom:1rem;}.flex-center{display:flex;align-items:center;justify-content:center;}.gap-1{gap:1rem;}@media (max-width:860px){:root{--nav-h:60px;}.nav{padding:0 1.5rem;}.nav-search{display:none;}.nav-links{display:none;}.container,.container-sm{padding:0 1.5rem;}.two-col{grid-template-columns:1fr;gap:2rem;}.sidebar{position:static;}.field-row{grid-template-columns:1fr;gap:1.5rem;}.home-hero{padding:4rem 1rem 3rem;}.footer-grid{grid-template-columns:1fr 1fr;gap:3rem;}.calc-grid{grid-template-columns:1fr;}.related-calcs{grid-template-columns:1fr;}.page-hero{padding:2rem 0;}.calc-panel{padding:1.75rem;}.result-grid{grid-template-columns:1fr 1fr;}}@media (max-width:520px){.home-hero h1{font-size:2.2rem;}.footer-grid{grid-template-columns:1fr;gap:2rem;}.home-stats{gap:2rem;}.email-capture-box{padding:1.75rem;}.email-capture-form input{width:100%;}.email-gate-box{padding:2rem;}}.disp-wrap{background:rgba(10,11,16,0.6);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.25rem 1.5rem;margin-bottom:1.5rem;text-align:right;box-shadow:inset 0 2px 8px rgba(0,0,0,0.4);}.disp-expr{font-family:'Plus Jakarta Sans',sans-serif;font-size:0.875rem;color:var(--text-secondary);min-height:1.25rem;margin-bottom:0.5rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;letter-spacing:0.05em;}.disp-num{font-family:'Plus Jakarta Sans',sans-serif;font-size:2.25rem;font-weight:700;color:var(--text);line-height:1.1;word-break:break-all;overflow-x:auto;white-space:nowrap;}.disp-num::-webkit-scrollbar{display:none;}.disp-num{-ms-overflow-style:none;scrollbar-width:none;}.sci-row{display:grid;grid-template-columns:repeat(5,1fr);gap:0.5rem;margin-bottom:0.75rem;}.btn-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0.625rem;}.btn-grid button,.sci-row button{font-family:'Plus Jakarta Sans',sans-serif;font-size:1rem;font-weight:600;height:3.25rem;border-radius:var(--radius-sm);border:1px solid var(--border);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);outline:none;background:var(--bg-card);color:var(--text);}.btn-grid button:hover,.sci-row button:hover{background:var(--bg-input);border-color:var(--border-hover);transform:translateY(-1px);}.btn-grid button:active,.sci-row button:active{transform:translateY(1px) scale(0.97);}.sci-row button.b-fn{font-size:0.875rem;background:rgba(108,99,255,0.08);border-color:rgba(108,99,255,0.15);color:var(--primary);}.sci-row button.b-fn:hover{background:rgba(108,99,255,0.15);border-color:rgba(108,99,255,0.3);color:var(--primary-hover);}.btn-grid button.b-clear,.sci-row button.b-clear{background:rgba(239,68,68,0.08);border-color:rgba(239,68,68,0.15);color:var(--red);}.btn-grid button.b-clear:hover,.sci-row button.b-clear:hover{background:rgba(239,68,68,0.15);border-color:rgba(239,68,68,0.3);}.btn-grid button.b-op{background:rgba(108,99,255,0.12);border-color:rgba(108,99,255,0.2);color:var(--primary);font-size:1.125rem;}.btn-grid button.b-op:hover{background:rgba(108,99,255,0.2);border-color:rgba(108,99,255,0.4);color:var(--primary-hover);}.btn-grid button.b-eq{background:var(--primary);border-color:var(--primary-hover);color:#ffffff;font-size:1.25rem;}.btn-grid button.b-eq:hover{background:var(--primary-hover);box-shadow:0 0 12px rgba(108,99,255,0.4);}.btn-grid .b-span2{grid-column:span 2;}@media (max-width:520px){.sci-row{grid-template-columns:repeat(4,1fr);}.btn-grid button,.sci-row button{height:3rem;font-size:0.95rem;}}